💡 [REQUEST] - Add unit tests

[Gauravdarkslayer]

Summary

Need to add unit tests in this application, so that reviewers don't have to test on their local system everytime, when someone create a PR.

Basic Example

1. Write tests for existing functionality.
2. Use TDD for future development.
3. Jest testing framework can be used here.

Drawbacks

Extra development work

Unresolved questions

No response